[CoW AMM Deployer] Fix decimals on min traded token 0 filling

bleu · Apr 17, 2024 · 14afd4c · 14afd4c
1 parent 77a7304
commit 14afd4c
Showing 1 changed file with 14 additions and 4 deletions.
diff --git a/apps/cow-amm-deployer/src/app/new/(components)/AmmForm.tsx b/apps/cow-amm-deployer/src/app/new/(components)/AmmForm.tsx
@@ -6,6 +6,7 @@ import { InfoCircledIcon } from "@radix-ui/react-icons";
 import { useRouter } from "next/navigation";
 import { useEffect, useState } from "react";
 import { FieldValues, useForm, UseFormReturn } from "react-hook-form";
+import { formatUnits, parseUnits } from "viem";
 
 import { Button } from "#/components";
 import { Input } from "#/components/Input";
@@ -42,6 +43,15 @@ const getNewMinTradeToken0 = (newToken0: IToken, chainId: ChainId) => {
     chainId,
   })
     .then((price) => 10 / price)
+    .then((amount) =>
+      // Format and parse to round on the right number of decimals
+      Number(
+        formatUnits(
+          parseUnits(String(amount), newToken0.decimals),
+          newToken0.decimals
+        )
+      )
+    )
     .catch(() => 0);
 };
 
@@ -128,7 +138,7 @@ export function AmmForm({
                 });
                 setValue(
                   "minTradedToken0",
-                  await getNewMinTradeToken0(token, chainId as ChainId),
+                  await getNewMinTradeToken0(token, chainId as ChainId)
                 );
               }}
               selectedToken={formData?.token0 ?? undefined}
@@ -173,7 +183,7 @@ export function AmmForm({
           <AccordionTrigger
             className={cn(
               errors.minTradedToken0 ? "text-destructive" : "",
-              "pt-0",
+              "pt-0"
             )}
           >
             Advanced Options
@@ -312,7 +322,7 @@ function PriceOracleFields({
               getUniswapV2PairAddress(
                 chainId,
                 tokenAddresses[0],
-                tokenAddresses[1],
+                tokenAddresses[1]
               )
                 .then((address) => {
                   setValue("uniswapV2Pair", address);
@@ -369,7 +379,7 @@ async function getBalancerPoolId(chainId: number, tokens: Address[]) {
 async function getUniswapV2PairAddress(
   chainId: number,
   token0: Address,
-  token1: Address,
+  token1: Address
 ) {
   if (token0 === token1) throw new Error("Invalid tokens");
   const pairsData = await pairs.gql(String(chainId) || "1").pairsWhereTokens({